that the Messenger of Allah said: “When anyone of you has intercourse with his wife, let him cover himself and not be naked liked donkeys.” (Using translation from Ibn Mājah 1921)
قَالَ رَسُولُ اللهِ ﷺ «إِذَا أَتَى أَحَدُكُمْ أَهْلَهُ فَلْيَسْتَتِرْ وَلَا يَتَجَرَّدَانِ تَجَارُدَ الْعَيْرَيْنِ»